Weaknesses of type CWE-434

3,089 results

Upload sem restrição de arquivo com tipo perigoso

Ocorre quando uma aplicação aceita upload de arquivos sem validar adequadamente seu tipo, extensão ou conteúdo. Um atacante pode enviar executáveis, scripts ou outros arquivos maliciosos, que serão armazenados ou executados no servidor, comprometendo sua integridade e segurança.

Example

Um formulário de perfil aceita qualquer arquivo como 'foto do usuário' sem checar extensão ou MIME type. Um atacante envia um arquivo .exe ou .php renomeado como .jpg, que é salvo no diretório web e posteriormente executado quando acessado, permitindo execução de código remoto.

How to mitigate

Valide uploads checando MIME type real (não apenas extensão), restrinja tipos permitidos de forma explícita, armazene arquivos fora da raiz web, desabilite execução de scripts no diretório de upload e considere usar vírus scanner. Implemente whitelist rigorosa, nunca blacklist.

CVE-2023-0455HIGHUnrestricted Upload of File with Dangerous Type in unilogies/bumsysEPSS 5.7%CVE-2016-15042CRITICALFrontend File Manager < 4.0 & N-Media Post Front-end Form < 1.1 & - Arbitrary File UploadEPSS 5.7%CVE-2024-0300MEDIUMByzoro Smart S150 Management Platform HTTP POST Request userattestation.php unrestricted uploadEPSS 5.7%CVE-2025-6058CRITICALWPBookit <= 1.0.4 - Unauthenticated Arbitrary File UploadEPSS 5.5%CVE-2026-21877CRITICALn8n is vulnerable to Remote Code Execution via Arbitrary File WriteEPSS 5.4%CVE-2021-4449CRITICALZoomSounds <= 5.96 - Unauthenticated Arbitrary File UploadEPSS 5.4%CVE-2022-44384HIGHAn arbitrary file upload vulnerability in rconfig v3.9.6 allows attackers to execute arbitrary code via a crafted PHP file.EPSS 5.4%CVE-2022-42040CRITICALThe d8s-algorithms package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The bEPSS 5.3%CVE-2020-24407CRITICALArbitrary code execution via file import functionalityEPSS 5.3%CVE-2026-14894CRITICALSuper Forms <= 6.3.313 - Unauthenticated Arbitrary File Upload via 'data' Parameter (datauristring / value)EPSS 5.1%CVE-2021-36741HIGHAn improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG, and Worry-Free Business Security 1EPSS 5.0%KEVCVE-2021-39149HIGHXStream is vulnerable to an Arbitrary Code Execution attackEPSS 4.7%CVE-2021-39147HIGHXStream is vulnerable to an Arbitrary Code Execution attackEPSS 4.7%CVE-2021-39151HIGHXStream is vulnerable to an Arbitrary Code Execution attackEPSS 4.7%CVE-2021-39154HIGHXStream is vulnerable to an Arbitrary Code Execution attackEPSS 4.7%CVE-2021-39148HIGHXStream is vulnerable to an Arbitrary Code Execution attackEPSS 4.7%CVE-2015-10137CRITICALWebsite Contact Form With File Upload <= 1.3.4 - Arbitrary File UploadEPSS 4.7%CVE-2024-34982CRITICALAn arbitrary file upload vulnerability in the component /include/file.php of lylme_spage v1.9.5 allows attackers to execute arbitrary code vEPSS 4.7%CVE-2024-33752MEDIUMAn arbitrary file upload vulnerability exists in emlog pro 2.3.0 and pro 2.3.2 at admin/views/plugin.php that could be exploited by a remoteEPSS 4.6%CVE-2025-47577CRITICALWordPress TI WooCommerce Wishlist plugin <= 2.9.2 - Arbitrary File Upload VulnerabilityEPSS 4.6%